Malformations of vertebrae in sterile hybrid ducklings.
D000818:Animals; D004372:Ducks; D005260:Female; D006824:Hybridization, Genetic; D007246:Infertility / Q000151:congenital / Q000662:veterinary*; D008297:Male; D011201:Poultry Diseases / Q000151:congenital*; D012600:Scoliosis / Q000151:congenital / Q000662:veterinary; D013122:Spinal Diseases / Q000151:congenital / Q000662:veterinary*